[Bug 1770847] Re: ubuntu 18.04

[dino99]

That is what heppen so often when ppa is used:

ERROR IOError/SystemError in cache.update(): 'E:The repository
'http://ppa.launchpad.net/jonathonf/gcc-7.1/ubuntu artful Release' does
not have a Release file.

So use ppa-purge to downgrade the ppa's packages to genuine version;
then clean the system via 'gtkorphan' & 'bleachbit' (as root, carefully
select options), and finally reboot.

Try then again to upgrade, the installer should be happier.

** Changed in: ubuntu-release-upgrader (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1770847

Title:
  ubuntu 18.04

Status in ubuntu-release-upgrader package in Ubuntu:
  Incomplete

Bug description:
  i can't upgrade to ubuntu 18.04 :/

  ProblemType: Bug
  DistroRelease: Ubuntu 17.10
  Package: ubuntu-release-upgrader-core 1:17.10.11
  ProcVersionSignature: Ubuntu 4.13.0-42.47-generic 4.13.16
  Uname: Linux 4.13.0-42-generic x86_64
  NonfreeKernelModules: nvidia_uvm nvidia
  ApportVersion: 2.20.7-0ubuntu3.8
  Architecture: amd64
  CrashDB: ubuntu
  Date: Sat May 12 14:48:34 2018
  InstallationDate: Installed on 2016-12-14 (513 days ago)
  InstallationMedia: Xubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to artful on 2018-05-12 (0 days ago)
  VarLogDistupgradeTermlog:
   
  mtime.conffile..etc.update-manager.release-upgrades: 2018-05-12T14:33:14.811371

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